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Effect of stream segregation on ozonation for the removal of significant COD fractions from textile wastewater
Abstract
Ozonation was tested on selected streams of cotton finishing textile plant wastewater for optimizing chemical oxygen demand (COD) removal. For this purpose, significant COD fractions in the wastewater were experimentally identified and the effect of ozone on these fractions was investigated. Ozonation experiments were performed with a 1 dm 3 sample volume. Ozone treatment of batches of raw wastewater provided, at a rate of 62 mg min−1 and a gas feeding time of 15 min, achieved complete colour removal but only 21% COD reduction. Increasing the feeding time to 30 min slightly increased the COD removal to 32%. At this feeding time, removal of the readily biodegradable COD was 60%, but soluble inert COD reduction remained at 16%, indicating selective preference of ozone for simpler compounds. At low concentrations, ozone was mainly influential on soluble COD compounds. Longer feeding times also affected particulate compounds, resulting in the solubilization of the COD fractions. Pre‐ozonation of the dye‐house wastewater, as a segregated stream, proved much more effective in the breakdown of refractory organic compounds, rendering the overall plant effluent more amenable to biological treatment. © 2002 Society of Chemical Industry
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Ozone selectively oxidizes simpler readily biodegradable soluble COD fractions, leading to unnecessary consumption of the chemical.
“Dogruel et al 56 , pointed out to the selective preference of ozone for simpler readily biodegradable soluble COD fractions, which leads to unnecessary consumption of the chemical.”
From Hybrid Treatment Systems for Dye Wastewater (2007) · cites this paper as [56]
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Research works printed but not linked: 19
- 10.2166/wst.1991.0015 · DOI · Paper page
- Sewekow U, 1993, Behandlung von reaktivfarbigen Abwässern mit Wasserstoffperoxid/Eisen(II) Sulfat, Melliand Textilber, 74, 153
- WagnerV Oxidative Behandlung von farbigen refraktären Abwässern der Textilveredelungsindustrie mit Kombination von H2O2 O3und UV mit dem Ziel nichttoxischer biologisch besser abbaubarer Reaktionsprodukte. Dr Thesis Institut für Ökologische Chemie der GSF München und Solvey (1995).
- 10.1016/0043-1354(92)90192-7 · DOI
- Gaehr F, 1994, Ozonation – An important technique to comply with new German laws for textile wastewater treatment, Water Sci Technol, 30, 255, 10.2166/wst.1994.0115 · DOI
- Orhon D, 1994, Modelling of Activated Sludge Systems
- DoǧruelS The effect of ozonation on COD fractions – A case study for cotton finishing mill.MSc Thesis Istanbul Technical University Institute of Science and Technology (2000) (in Turkish).
- 10.1007/978-3-642-59791-6_28 · DOI
- 10.2166/wst.2001.0686 · DOI
- 10.1016/S0273-1223(98)00492-2 · DOI
- 10.1016/S0273-1223(99)00374-1 · DOI
- 10.1016/S0043-1354(99)00207-9 · DOI
- 10.2166/wst.1986.0062 · DOI
- 10.1002/jctb.462 · DOI
- 10.1002/(SICI)1097-4660(199703)68:3<283::AID-JCTB633>3.0.CO;2-X · DOI
- American Public Health Association, American Water Works Association and Water Environment Federation, 1998, Standard Methods for the Examination of Water and Wastewater
- 10.2166/wst.1991.0559 · DOI
- 10.2166/wst.1992.0462 · DOI
- Germirli Babuna F, 1998, Inert COD fractions of various textile dyeing wastewaters, Fresenius Environ Bull, 7, 959
Cited by
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Hybrid Treatment Systems for Dye Wastewater
Hai, F. I., Yamamoto, K., & Fukushi, K. (2007) · Critical Reviews in Environmental Science and Technology · doi:10.1080/10643380601174723 · Cited by 557
Metadata
- Authors
- Doǧruel, S., Germirli‐Babuna, F., Kabdaşlı, I., Insel, G., & Orhon, D.
- Venue
- Journal of Chemical Technology & Biotechnology
- Publisher
- Wiley
- Published
- 2002-12-13
- Volume
- 78
- Issue
- 1
- Pages
- 6-14
- ISSN
- 0268-2575
- 1097-4660
- Cited by
- 25
- References
- 0
- Language
- en
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